Introduction:
Coronaviruses can infect humans and animals. A novel Coronavirus was identified in 2019, causing pneumonia in patients within China initially then spread globally, resulting in an epidemic. The virus that causes COVID-19 has been named severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). (1), (3)
Full-genome analysis indicated that the coronavirus that causes COVID-19 is a beta coronavirus that resembles SARS Virus (severe acute respiratory syndrome virus). Similarly, the structure of the receptor-binding gene region is very similar to that of the SARS virus, and the virus has been shown to use the same receptor, the angiotensin-converting enzyme 2 (ACE2), for cell entry (2)
The cases of COVID-19 vary from asymptomatic or pauci symptomatic forms to clinical conditions characterized by respiratory failure , to multi-organ and systemic manifestations as well as sepsis, septic shock, and multiple organ dysfunction syndromes (MODS). (19)
One of the common laboratory findings among patients infected with COVID-19 is lymphopenia (5). We wanted to look at the presence of leucopenia in patients who tested positive for COVID -19  and delivered in our unit at Sandwell and West Birmingham hospital as many reports have been using it as a diagnostic marker but in our experience it seemed to be uncommon for CCOVID positive cases to have lymphopenia so we examined our results which confirmed our observations are true.
Material and Methods:  We reviewed all patients who tested positive for COVID-19 and were pregnant in our unit between 10 March 2020 and 31 May 2020. We looked at the white blood cell counts of all the patients and their outcomes. We specifically looked at lymphocyte count as well as neutrophil count and calculated the neutrophil lymphocyte ratio for every case in our series.